Object-Oriented Programming (OOP) is a type of
programming which makes building complex,
modular and reusable web applications that much
easier. With the introduction of PHP5, PHP can now
compete with the likes of Java, C#, since it now has
the complete OOP infrastructure. In this tutorial, I
will be discussing on Introuduction to OO PHP.

Why not let your own script fetch the statistics directly from google adsense reporting site? It's always much easier to have the data locally in your own database, and then create scripts to display the stats in the way you are interested in.